Economic survey methods/
Lansing, John B.
Economic survey methods/ John B. Lansing. - [1st ed.] - Ann Arbor: Univ. of Michigan, 1980. - 429 p.:
330.0723 / L295e
Economic survey methods/ John B. Lansing. - [1st ed.] - Ann Arbor: Univ. of Michigan, 1980. - 429 p.:
330.0723 / L295e